An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Hongbo Y, Thomas CL, Harrison MA, Salek MS, Finlay AY.Hongbo Y, et al.J Invest Dermatol. 2005 Oct;125(4):659-64. doi: 10.1111/j.0022-202X.2005.23621.x.J Invest Dermatol. 2005.PMID: 16185263Free article.